The effect of femoral component design on anterior knee pain after patella reserving total knee arthroplasty
- VernacularTitle:股骨假体设计对保留髌骨全膝关节置换术后膝前痛的影响
- Author:
Yixin ZHOU
;
Hong ZHANG
;
Deyong HUANG
- Publication Type:Journal Article
- Keywords:
Arthroplasty, replacement, knee;
Patella;
Postoperative complications
- From:
Chinese Journal of Orthopaedics
2000;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effect of femoral design on anterior knee pain after patella reserving total knee arthroplasty. Methods From 15 January to 15 February 2002, 44 patients and 59 knees were followed up. Among these patients, 40 patients and 51 knees were included in this study, the rest cases were excluded for one or more of following factors. 1)Knee flexion was less than 80 degrees;2)Radiography showed that there were surgical errors such as: femoral component flexion more than 30, anterior femoral cortex notching, and patellar baja or alta. According to current generally accepted criteria, femoral components were classified as "Patella Friendly" group and "Patella Unfriendly" group. The percentage and severity of anterior knee pain was measured with patient visual pain index and Knee Society Functional Score System. Results The aforementioned two groups consisted of "Patella Friendly" group 21 knees and "Patella Unfriendly" group 31 knees. The average anterior knee pain score of "Patella Friendly" group and "Patella Unfriendly" group was respectively 1.58 (0-8) and 3.32 (0-6). The percentage of pain free patients of the two groups was 64% and 9%. There was significant statistical difference between the groups in terms of anterior knee pain score (t=4.642, P
